Mining-machine truck



M. P. HOLMES.

mums MACHINE YRucK.

APPLICATION FILED .IUNE2I, I916.

Patented- Feb.'22,1'921.

2 SHEETS SHEET 1-- M. P. HOLMES.

MINING'MACHINE TRUCK.

APPLICATION FILED JUNE Zh 1915 Patented. Feb. 22, 1921 2 SHEETSSHEET 2- I Ill/II.

UNITED STATES PATENT. OFFICE,

MORRIS P. HOLMES, OF CLAREMON T, HAMPSHIRE, ASSIGNOR, BY MESNE ASSIGN- MENTS, 'TO THE JEFFREY MANUFACTURING COMPANY, OF COLUMBUS, OHIO, A

CORPORATION OF OHIO;

, MINING-MACHINE TRUCK.

T 0 all whom it may concern:

Be it known that I, MORRIS P. HOLMES, a citizen of the United States, residing at Claremont, in the county of Sullivan and State of New Hampshire, have invented certain new anduseful Improvements in Min hag-Machine Trucks, of which the following isa full, clear, and exact specification.

My invention relates to mining machine trucks.

It has for its object to provide an improved mining machine truck. Further and more specific objects of my invention are to provide improved truck driving means and, more especially, improved clutch and brake mechanism therefor, and improved-controlling mechanism for said clutch and brake mechanism, whereby the connections of the truck wheels to a source of power, as for instance, the motor of a mining machine mounted thereon. as well as the speed of rotation of these wheels when the truck is movin alon its track. ma be re ulated in b b b improved manner. These and other ob jects of my, invention will hereinafter appear. V

In the accompanying drawings, I have, for purposes of illustration, shown one embodiment which my invention may assume in practice, illustrating the same as used in connection with a mining machine of the continuous cutter type,

In these drawings,

Figure 1 is a plan view of a mining machine truck equipped with my improvements, the mining machine being mounted thereon and certain parts of the machine casing being broken away to facilitate illustration.

Fig." 2 is a side elevation of the truck and machine shown in Fig. 1, certain parts of the machine casing also being broken away to facilitate illustration.

Fig. 3 is a vertical sectional view taken substantially on line 33 of Fig. 1, showing 1916. Serial No. 105,042.

operator riding on the truck, as for instance,

on a platform 6 at the rear thereof, may control the connection of the truck wheels to the motor of the mining machine and also control the speed of truck movement.

In improved construction, a large gear 7, driven by the motor of the mining machine 5 and carried on the latter, serves as the power transmitting element, this gear preferably being mounted on the same shaft 8 on which the driving member 9 for the machine feedchain 10 is carried. As shown, this gear 7 meshes with a smaller cotiperating gear 11 carried on a vertical, rearwardly located shaft 12, disposed preferably in the center of the truck 1. This shaft 12 is, in turn, preferably provided with a reduced portion 13 extending through a roller step bearing let and a collar 15 resting on the upper bearing member, both the shaft and bearing being readily accessible for removal through a removable cap 16 formed on a lower casing member 17. It will also be noted that a sleeve 18 is provided on the lower face of the gear 11, and that the sleeve extends down between suitable cotiperating bushings 19 and 20, one of which surrounds the upper end of the shaft 12, while the other forms a lining for an upper bearing I 21, preferably formed integral with an upper casing member 22 removably attached to the casing member 17. As illustrated, the upper end of the shaft 12 is also preferably provided with a collar 23 similar to the collar 15, which abuts against a flange 24 on the lower end of' he bushing 20,andthis shaft also carries between the collars 15 and 23,-a worm gear 25 meshing with a cooperat ing worm 26 carried on a transversely disposed shaft 27, which is in turn suitably journaled on the frame and has one end connected with the axles through suitable power connections, as for instance, chain and sprocket connections 28.

It will be noted that in the construction shown, improved clutch and brake mechanism is pro Fed to control the connection of the gear v1 1 to the shaft 12 and the speed of rotation of that shaft. As illustrated, this mechanism is housed in the gear 11, the latter for that purpose being provided with a cylindrical recess 29 in its upper face. In this recessv and resting upon the bottom thereof, is a plurality of radially disposed friction segments 30 having upstanding arcshapedfriction surfaces 31 on their outer edges, and upstanding lugs 32 on their inner edges. These lugs 32 are, as shown, pivotally connected to short, radially disposed toggle links 33, in turn pivoted at their inner ends to a central, vertically adjustable member 34, which is splined on a reduced portion 35 on the shaft 12 and cup-shaped to receive the end of that shaft. It will also be noted that a member 36, preferably a cover plate removably attached, as by a bolt 37, to the upper surface of the casing member 22 and extending over the greater portion of the gear 11, has a central opening 38 therein, through which the member 34 is reciprocabio, and that this member 36 is also provided with an annular depending flange 39 which extends into correspondingly shaped slots 4-0 in the segments 30, the slots being disposed between the inner surface of the portions 31 of the segments and the lugs 32 thereon. Attention is also directed to the fact that a friction band ell is disposed between the portions 31 and the inner wall of the recess 29, and that a brake band or lining 42 is disposed between the opposite faces of the'portions 3i and the adjacent surface of the flange 39. Controlling the connection of the clutch and brake mechanism above dcscribed, is an operating lever 43 pivoted at a point adjacent its front end at 44 on upstanding lugs 45 on the cover plate 36, and having one end pivotally connected at as on the opposite sides of the vertically adjustable member 34. As shown, the rear end of this lever 43 is pivot-ally connected at 47 with an internally threaded socket member 48 receiving an upiivardly extending threaded portion is) formed on a hand-wheel 50, which also provided with lower, oppositely threaded portion receivable in a threaded socket 52 similar to the socket t8 and pivoted at 53 to the casing member 22 at a point in rear of the shaft 27 In the operation of my improved construction, it will be noted that when the machine has been moved upon the truck, as by feeding it along its feed chain 10 when the latter is attached to a suitable stationary part 54- on the truck, the gearing 7 will be brought into mesh with the gear 11, and that an operator through manipulation of the handconditions, More specifically, it will be noted that when the wheel 50 is turned to raise the lever 43, the vertically adjustable friction controlling member 3 .1 will be lowcred in such a manner as to press the outer surfaces of the friction segments 30 outward toward the wall of the recess 29 in the gear 11, to apply the friction and simultaneously withdraw the opposite sides of those segments from the outer surface of the fixed flange 39 on the meml er 36, thereby releasing the brake. When the wheel 50 is turned in the opposite direction, however, i. c. to lower the lever 43, it will be noted that the member 34; is then raised, thereby pulling in the friction segments 30 in such a manner as to release the friction, and at the same time cause their inner surfaces to move toward the outer surface of the fixed flange 39, and thereby apply the brake.

In my improved construction, it will be noted that, due to the improved arrangement set forth, a very powerful brake and friction is obtainable. Attention is also directed to the fact that the device is exceedingly compact, simple and rugged in construction, and of a character which enables the same to be cheaply manufactured. It should also be observed that the parts of the same are readily accessible, the cover plate 34 being readily removable to permit access to the friction clutch and brake when desired, while the shaft 12 and its bearing 14: may be readily removed. when necessary by simply removing the cap 16. It will also be noted that the controlling member 50 is very conveniently located for an operator riding on the platform 6, and that this member is at the same time so disposed at the center of the machine that it will not strike the walls of the tunnel in making turns or the like. These and other advantages of my improved construction will, however, be apparel t to those skilled in the art.

lVhile l have in this application specifically described one embodiment which my invention may assume in practice, it is to be understood that the same is not limited thereto. but may be embodied in various other forms without departing from its spirit, it being my intention to include all such modi ications within the scope of the appended claims-j lVhat I claim as new and desire to secure by Letters Patent is:

1. ln a truck driving mechanism, a driven member, a driving member, a fixed member, and means alternatively engageable between the driving member and the driven member, and the tired member and the driven mem her, to actuate the driven member or brake a movement thereof.

2. In a truck driving mechanism, a driven shaft, a driving member, a fixed member, and a single means for connecting said shaft to either of said members but preventing the connecting of said shaft simultaneously with both of said members.

3. In a truck driving mechanism, an element to be driven, and controlling means for moving said element or braking a movement thereof, and comprising a driving member, a fixed member, and a cooperating clutch member adapted to be engaged with either of said members, said members being concentrically disposed.

In a truck driving mechanism, an element to be driven, and controlling means for moving said element or braking a movement thereof, and comprising a driving member, a fixed'member, and a cooperating clutch member alternatively engageable with either of said members and connected to said element to be driven, said members being concentrically disposed.

5. In a truck driving mechanism, a truck propelling element, and means for rotating or braking the rotation of said element com prising a driving member, a coaxial fixed member. and a cooperating coaxial toggle operated clutch member between said members alternatively engageable therewith and longitudinally movable on and rotatable with the truck propelling element.

6. In a truck driving mechanism, a truck propelling element, and means for rotating said element or braking the rotation of said element comprising a driving member, a coaxial inner fixed member, a cooperating coaxial toggle operated clutch member between said members and longitudinally movable on and rotatable with said element. and means for expanding -or contracting sai d clutch member.

7. The combination with a wheeled mining machine truck, of a driving mechanism therefor comprising a plurality of operatively connected shafts, one disposed transversely and the other vertically and one opcratively connected to the truck wheels and the other adapted to be driven by a mining machine, and means for rotating or braking the rotation of said first mentioned shaft including concentrically disposed cooperating driving, stationary and clutch members, of which the latter member is alternatively ongageable withthe others.

The combination with a wheeled mining machine truck. of a driving mechanism therefor comprising a plurality of operativcly connected shafts, one disposed transverselv and the other vertically and one OflG ffitlTely connected to the truck wheels and the other adapted to be driven by a mining machine. and means for rotating or braking the rotation of said first mentioned shaft including concentrically disposed annular driving, stationary and clutch members, of which the latter member is alternatively engageable with the others.

'9. The combination with a wheeled mining machine truck, of a driving mechanism therefor comprising a plurality of operativcly connected shafts, one disposed transversely and the other vertically and one operatively connected to the truck wheels and the other adapted to be driven by a mining machine, and means for rotating or braking .the rotationof said first mentioned shaft including concentrically disposed annular overlapping driving. stationary andv clutch members. of which the latter member 1s al- 'ternatively engageable with the others.

.10. In a mining machine truck, a wheeled frame, an upstanding shaft thereon, a gear adapted to mesh with a mining machine on said frame and loosely mounted on said shaft, friction clutch mechanism controlling the connection of said gear to said shaft, a

wheel driving shaft, and power connections between said shafts.

11. in a mining apparatus, a wheeled truck. a shaft thereon, a member rotatable on said shaft. clutch and brake mechanism controlling the connection of said rotatable element to said shaft and the speed of the latter, .a. wheel driving shaft, and power connections between said shafts.

12. In a mining machine truck, a wheeled frame, an upstanding shaft, an element rotatable thereon. clutch mechanism control ling the connection of said rotatable element to said shaft, a transverse wheel driving shaft, and a worm and worm gear driving connection between said upstanding and transverse shafts.

13. In a mining apparatus. a wheeled truck, a shaft on said truck, an element rofriction clutch disposed between said first mentioned and the element rotatable In a mining apparatus, a wheeled truck. a shaft on said truck, an element rotatable on said shaft, a wheel driving shaft, power connections between the same and said. first mentioned. shaft, clutch mechanism between said first mentioned shaft and the element rotatable th ereon, and a brake for one of said shafts. r

16. The combination with a wheeled mining machine truck, of a driving mechanism therefor comprising a shaft on said truck, anielement rotatable on saidshaft, a wheel llO driving shaft, power connections between the same and said first mentioned shaft, clutch mechanism between said first mentioned shaft and the element rotatable thereon, and a brake for said first mentioned shaft.

' 17. The combination with a wheeled mining machine truck, of a driving mechanism therefor comprising a shaft on said truck, an element rotatable on said shaft, a wheel driving shaft, power connections between the same and said first mentioned shaft, clutch mechanism controlling the connection of said first mentioned shaft and the element rotatable thereon, a brake for one of said shafts, and controlling means for said clutch and brake.

18. The combination with a wheeled mining machine truck, of a driving mechanism therefor comprising a shaft on said truck, an element rota-table on said shaft, a wheel driving shaft, power connections between the same and said first mentioned shaft, friction clutch mechanism controlling the connection of said first mentioned shaft and the element rotatable thereon, a brake for one of said shafts, and controlling means for said clutch and brake.

19. T he combination with a wheeled mining machine truck, of a driving mechanism therefor comprising a shaft on said truck, an element rotatable on said shaft, a wheel driving shaft, power connections between the same and said first mentioned shaft, clutch mechanism controlling the connection of said first mentioned shaft and the element rotatable thereon, a brake for one of said shafts, and controlling means including a single operating member for controlling both said clutch and brake.

20. lhe combination with a wheeled mining machine truck, of a driving mechanism therefor comprising a shaft on said truck, an element rotatable on said shaft, a wheel driving shaft, power connections between the same and said first mentioned shaft, clutch mechanism controlling the connection between said first mentioned shaft and the element rotatable thereon, a brake for one of said shafts, and means for releasing the clutch and applying the brake or applying the clutch and releasing the brake.

21. lhe combination with a wheeled mining machine truck, of a driving mechanism therefor comprising an upstanding shaft thereon, a wheel driving shaft operatively connected to said upstanding shaft, a gear loosely mounted on said upstanding shaft, a friction clutch between said gear and shaft, and a reciprocable clutch controlling member movable longitudinally of said shaft and operatively connected to said friction clutch.

22. In a mining machine truck, a wheeled frame, an upstanding shaft thereon, a gear loosely mounted on said shaft and having a recess therein, a friction clutch disposed in said recess and engageable with the wall thereof, a reciprocable clutch controlling member movable longitudinally of said shaft and operatively connected to said clutch, controlling means for said member, a wheel driving shaft, and power connections be tween said upstanding shaft and said wheel driving shaft.

23. In a mining machine truck, a wheeled frame, an upstanding shaft thereon, a gear loosely mounted on said shaft and having a recess therein, a member extending into said recess, a friction clutch member movable between said member and a wall of said recess, means for controlling the movement of said clutch member, a truck driving shaft, and driving connections between said upstanding shaft and said driving shaft.

24:. In a mining machine truck, a wheeled frame, an upstanding shaft thereon, a gear loosely mounted on said shaft and having a recess therein, a member extendmg into said recess, a friction clutch member movable between said member and a wall of said recess, means for controlling the movement of said friction member including a single pivoted lever, a truck driving shaft, and driving connections between said upstanding shaft and said driving shaft.

25. In a mining apparatus, a truck having wheels, a truck driving shaft operatively connected to said wheels, a coiiperating shaft, driving connections between said shafts, a driving member loosely mounted on said cooperating shaft, a clutch controlling the connection of said driving member to said shaft, and clutch controlling means including a single operating lever, and a hand-wheel operatively connected thereto and movable in either direction to control said lever.

26. In a mining apparatus, a wheeled truck, a shaft thereon, an element rotatable on said shaft, a transversely disposed truck driving shaft, brake and clutch mechanism controlling the rotation of said first mentioned shaft and the connection of the same to said rotatable element, and controlling mechanism for said brake and clutch mechanism including a lever pivotally connected thereto and an adjustable hand-wheel connection pivotally connected to said lever and to said truck.

27. In combination, a wheeled truck, a mining machine carried thereon having a rotatable element, a shaft journaled on said truck, a member rotatable on said shaft and engageable with the rotatable element on said mining machine, a clutch controlling the connection of said shaft to the member rotatable thereon, a wheel driving shaft, and a driving connection between said shaft and said first mentioned shaft 28. In combination, a wheeled truck, a

said truck, a member rotatable on said shaft and engageable with the rotatable element on sa1d-m1n1ng machine, a friction clutch controlling the connection of said shaft to the member rotatable thereon, a wheel driving shaft, and a driving connection between the same and said first mentioned shaft.

29. In combination, a Wheeled truck, a mining machine carried thereon and having a rotatable element, a shaft journaled on said truck, a member rotatable on said shaft and engageable with the rotatable element on said mining machine, a clutch controlling the connection of said shaft to the member rotatable thereon, a wheel driving shaft, a driving connection between the same and said first mentioned shaft, and a brake for one of said shafts.

30. In'combination, a wheeled truck, a mining machine carried thereon and having a rotatable element, a shaft j'ournaledon said truck, a member rotatable on said shaft and engageable with the rotatable element.

on said mining machine, a clutch controlling the connection of said shaft to the member rotatable thereon, a wheel driving shaft, a driving connection between the same and said first mentioned shaft, a brake for one of said shafts, and a-single means for s1multaneously releasing said clutch and applying said'brake. V

31. In a mining machine'truck; a wheeled frame; a wheel driving shaft; a cooperating shaft; power connections between said shafts; an element rotatable on said cooperating shaft; a friction clutch controlling the connection of said element to said cooperating shaft; and means for controlling said clutch including a lever pivoted on said truck and extending over said truck driving shaft, a hand-wheel having oppositely threaded portions, and threaded sockets receiving said portions and pivoted, respec-' tively, to said lever and to said truck.

32. In combination, atruck, wheels there on, a truck driving shaft, power connections between said Wheels and said shaft, a 00- operating shaft, driving connections between said shafts, an element rotatable on said cooperating shaft, a friction clutch interposed between said rotatable element and said cooperating shaft, a brake for the cooperating shaft, and a single manually movable lever operatively connected to said clutch and brake for releasing the clutch and applying the brake or applying the clutch and releasing the brake.

33. In combination, a mining machine truck, a mining machine carried thereon and having a rotatable element, a shaft journaled on sald truck, a member rotatable on said shaft and engageable with the rotatable element on said machine, a clutch controlling the connection between said shaft and the rotatable element thereon, a wheel 7 driving shaft, operative connections between the same and said first mentioned shaft, 'means for adjusting said clutch to control said shaft including a lever pivoted on said truck, and means for adjusting said lever and holding it in each position of adjustment.

34. In combination, a wheeled truck, a mining machine thereon having a rotatable element, a shaft on said truck, an element 7 rotatable on said shaft and .counectible with the rotatable element on said machine, a wheel driving shaft, power connections between the same and said first mentioned shaft, brake and clutch mechanism controlling the rotation of said first mentioned shaft and the connection of the same to the element rotatable thereon, and means for controlling said mechanism.

35. In combination, a wheeled truck, a mining machine having a rotatable element thereon, a shaft on said truck, an element rotatable on said shaft and connectible with the rotatable element on said machine, a truck driving shaft, power connections between the same and said first mentioned shaft, brake and clutch mechanism controlling the rotation of said first mentioned shaft and the connection of the same to the element rotatable thereon, and controlling means for said mechanism including an adjustable hand-wheel.

V In testimony whereof I aifix my signature.

MORRISP. HOLMES. 

